<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格</title>
    <style>
        h1{
            color:red;
        }
        table{
            border:5px double red;
            border-spacing: 0;
        }
        th,td{
            border-right: 1px dotted red;
            border-bottom:1px dotted red;
            padding:6px 10px;
        }
        th{
            background-color:red;
            color:yellow;
        }
    </style>
</head>
<body>
<h1>利用表格来组织信息</h1>
<table>
    <tr>
        <th>学号</th>
        <th>姓名</th>
        <th>电话</th>
    </tr>
    <tr>
        <td>243114201</td>
        <td>张三</td>
        <td>1333333333</td>
    </tr>
    <tr>
        <td>243114202</td>
        <td>李四</td>
        <td>1555555555</td>
    </tr>
    <tr>
        <td>243114203</td>
        <td>王五</td>
        <td>1555555555</td>
    </tr>
</table>
</body>
</html>